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Questions and Answers
What is the formula for calculating the standard (random) error for a single reading (one trial)?
What is the formula for calculating the standard (random) error for a single reading (one trial)?
- $\Delta x = \text{smallest division of the scale}$
- $\Delta x = \frac{\text{smallest division of the scale}}{2}$
- $\Delta x = \frac{\text{half of the smallest division of the scale}}{2}$ (correct)
- $\Delta x = 2 \times \text{smallest division of the scale}$
What is the smallest division for the device with the reading T = 11 ± 0.5 oC?
What is the smallest division for the device with the reading T = 11 ± 0.5 oC?
- 0.25 oC
- 0.5 oC
- 0.75 oC
- 1 oC (correct)
What method is used to calculate the standard error for a set of measurements (readings)?
What method is used to calculate the standard error for a set of measurements (readings)?
- Standard deviation method (correct)
- Variance method
- Average deviation method
- Mean absolute deviation method
What is the standard error (Δx) for the set of readings: -0.4, 0.3, -1.3, 1.4, 0.16, 0.09, 1.69, 1.9?
What is the standard error (Δx) for the set of readings: -0.4, 0.3, -1.3, 1.4, 0.16, 0.09, 1.69, 1.9?
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What is the formula for calculating the average value of a set of readings?
What is the formula for calculating the average value of a set of readings?
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